Main FeaturesTurb 550 Turbidity meters for all nephelometric measurements in the lab and in drinking water analytics of 0.01 - 1000 NTU according to DIN ISO 27027 / US EPA 180.1
The lab turbidity meters of the Turb 550 series with IR lamp as per DIN ISO or Tungsten-halogen lamp as per US EPA for nephelometric measurements with automatic 1-3 point calibration and calibration interval monitoring with protocol for the AQS. User guidance and quick instructions on the meter ensure user-friendly measurements and calibration. The calibration is conducted with highly precise AMCO Clear polymer standards, called a secondary standard for drinking water as per DIN ISO 27027, EN ISO 7027 or approved as primary standards as per US EPA (0.02 – 10.0 – 1000 NTU). The analytical quality assurance (AQA) takes place via an adjustable calibration interval and a calibration protocol.

Turb 555 Professional turbidity meters for the lab from 0.01 – 10.000 NTU according to drinking water standard, for quality, goods receiving and production inspections
Turb 555 offers highly precise optics with several detectors and therefore allows nephelometric (90° stray light) measurement for drinking water as per DIN ISO 27027/ EN ISO 7027 / US EPA 180.1, transmission and ration measurements (ratio method).
Ratio procedures reduce the influence of sample colorations and interference effects of stray light with high turbidity. Comprehensive AQA functions such calibration interval monitoring with protocol, password protection for calibration and setup access fulfill the quality assurance requirements. The calibration up to 4000 NTU takes place with highly precise AMCO Clear polymer standards (0.02 – 10.0 - 100 – 1750 NTU) that are called secondary standard for drinking water as per DIN ISO 27027, EN ISO 7027 or approved as primary standards as per US EPA. As an option, the measuring range can be expanded by a 10,000 NTU standard.

AMCO Clear Standards Compared to Formazine, polymer calibration standards offer a much higher accuracy and stability without drifting, which increases the measuring accuracy even more:
Manufacturing tolerance of only ±1% for highest result accuracy
Long-term stable particle distribution and size
No health hazard
Easy to dispose of
N.I.S.T. traceability
For continuous measurements, there is an attachment for flow-through available. The measurement data can be sent to a PC or a printer timer-controlled via the RS232 interface.

Main Features
The HI 88713 is a high accuracy bench top turbidity meter designed to meet and exceed the requirements of ISO 7027 standard and is ideal for water quality testing.
Using an infra-red light source it guarantees measurement repeatability and consistency. Variations in the intensity of the LED are also compensated for - limiting the need for frequent calibration.Advantages
Store up to 200 measurements in internal memory via LOG key
Access on-screen support via HELP key
Clear tutorial messaging
Step by step guide through the analysis process
Range of calibration options
Perform 2,3,4 or 5 point calibration using Hanna standards
Calibration points can be modified when user prepared standards are used
Complete Good Laboratory Practice (GLP) functions allow traceability of the calibration conditions
Wide bench top format with easy clean casing and user-friendly interface
Four turbidity measurement modes
Graphic backlit LCD displayMain Benefits
Calibration at 2,3,4 or 5 points
Choice of four turbidity measurement modes
Choice of 3 measuring modes - select between normal, continuous or signal averaging measurement
User-friendly display with guidance codes
Log up to 200 samples
Data transfer to PC available as optional using USB cable and HI 92000 Windows compatible software

Technical Data

Measuring range

FNU Mode

0.00 to 9.99; 10.0 to 99.9; 100 to 1000 FNU

FAU Mode

10.0 to 99.9; 100 to 4000 FAU

NTU Ratio Mode

0.00 to 9.99; 10.0 to 99.9; 100 to 4000 NTU 0.00 to 9.99; 10.0 to 99.9; 100 to 980 EBC

NTU Non-Ratio Mode

0.00 to 9.99; 10.0 to 99.9; 100 to 1000 NTU 0.00 to 9.99; 10.0 to 99.9; 100 to 245 EBC

The HI83414 is a multi parameter benchtop meter that measures the most important parameters in drinking water: turbidity and chlorine. The instrument is based on a state-of-the-art optical system which provides accurate results by minimizing stray light and color interferences. Periodic calibration with the supplied standards compensates for any variations in intensity of the tungsten lamp. The colorimeter portion of the meter uses a 525 nm narrow band interference filter for maintaining the proper wavelength in the measurement of free and total chlorine. All measurements are performed with 25 mm round cuvettes composed of special optical glass to ensure maximum repeatability of turbidity and chlorine measurements.Main FeaturesFour Measurement Modes The HI83414 features four measurement modes including ratio or non-ratio mode for turbidity, free chlorine, and total chlorine. In ratio mode the turbidity is 0.00 to 4000 NTU (Nephelometric Turbidity Units) while in the non-ratio mode the range is 0.00 to 40.0 NTU. The range for free or total chlorine measurements is 0.00 to 5.00 mg/L (ppm) range.
Multiple Turbidity Units of Measure Turbidity can be displayed as nephelometric turbidity units (NTU), European Brewing Convention units (EBC) or Nephelos units. EPA Compliant The HI83414 meets and exceeds the requirements of EPA and Standard Methods both for turbidity and colorimetric chlorine measurements. When the meter is in EPA mode all turbidity readings are rounded accordingly to meet reporting requirements.Calibration A two, three, four, or five-point turbidity calibration can be performed by using the supplied ( 0.1, 15, 100, 750, and 2000 NTU) standards.Calibration points can be modified if user-prepared standards are used. For free and total chlorine, the CAL Check™ standard can be used for calibration to 1.00 mg/L (ppm).AMCO AEPA-1 Primary Turbidity Standard - The AMCO AEPA-1 supplied standards are recognized as a primary standard by the USEPA. These non-toxic standards are made of styrene divinylbenzene polymer spheres that are uniform in size and density. The standards are stable and reusable with a long shelf life.CAL Check With the powerful CAL Check function, reliable performance of the chlorine colorimeter can be validated at any moment by using the exclusive HANNA ready-made, NIST traceable standards. All standards are supplied with a Certificate of Analysis (COA) for traceability.GLP Data The HI83414 features complete GLP (Good Laboratory Practice) functions that allow traceability of the calibration conditions. Data includes calibration points, date, and time.Data Logging Up to 200 measurements can be stored in the internal memory and recalled at any time.Data Transfer For further storage or analysis options, logged data can be downloaded to a Windows compatible PC using the USB port and the HI92000 software.Tutorial Mode The unique tutorial mode provides additional information to help the user during measurements. When enabled, the instrument displays explanations and a confirmation button when a preparation or other operation has to be performed.Contextual Help Contextual help is always available through a dedicated HELP button. Clear tutorial messages and directions are available on-screen to quickly and easily guide users through setup and calibration. The help information displayed is relative to the setting/option being viewed.Backlit Graphic LCD Display A graphic LCD display provides an easy to understand, user-friendly interface. All messages are in plain text making them easy to read.